UNIPEC DEMAND: Chinese trading firm Unipec entered the spot market, seeking an open-specification naphtha cargo for delivery in the second half of July in a tender that closes on Tuesday and remains valid until Wednesday, industry sources said.

But buying interest from North Asia remained quiet due to a holiday in South Korea, one of them said.

INDIA'S MRPL OFFERS: India's Mangalore Refinery and Petrochemicals Ltd (MRPL) has offered 35,000 tonnes of naphtha for loading from New Mangalore over July 14 to 15 in a tender that closes on June 12 and is valid until June 13.

It last sold a late June-loading cargo to PetroChina at a premium of between $13 and $14 a tonne over Middle East quotes.

GASOLINE: Taiwan's CPC has offered 92-octane and 93-octane gasoline for loading in July, in a tender that closes on June 6 and is valid until June 8, a Singapore-based source said.

QATAR RIFT: The costs of Qatari energy and commodity exports are likely to rise as the United Arab Emirates' ban on Qatari vessels cuts the ships off from the region's main refuelling port, forcing ships to sail further for fuel or pay higher prices.